Stanford Sleepiness Scale: Are you getting enough sleep?

Find out whether you are sleep deprived using this helpful scale!

Source: https://web.stanford.edu/~dement/sss.html

For more 'tests' such as this one, feel free to check out my other posts:

How Dark is Your Personality?
Which TED Talk are you?
Find out your EQ score!
How old are your ears?
How many colours can you see?
Whose #brainchild are you?

Do you ever have trouble telling right from left?

Hooked on Music - What makes music so catchy?
Kuku Kube - Test your eyesight!

Twitch Reflex Challenge!
How Well Do You See Colour?